$5x\:-\:1\:<\:10$
$x^2-7x-28$
$7a^2b\cdot7bc^2$
$x^2+9x-10$
$200e^{0.1x}+150e^{-0.3x}$
$\left(3x+5y-10z\right)\left(3x-5y-10z\right)$
$\left(-4x^4\:y\right)^5$
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